All comparable solutions were $2000-3000 for the same number of sensors. I was half expecting to loose $445 to a scam company in Slovakia. I was very pleasantly surprised and I wanted to share my positive experience. I was

<no-scam> actually being from .sk, i just can tell that what you might consider a crap price in .us gets you a reasonably good product here there are several companies here developing measurement and power systems, both telco- and industry- grade and they have great renome abroad if you need flexibility in [reasonably priced] custom-built products, i believe the best bet is one of these companies </no-scam> sorry if this disturbed you -- deejay a.k.a. -- Tomas Daniska systems engineer Tronet Computer Networks Plynarenska 5, 829 75 Bratislava, Slovakia tel: +421 2 58224111, fax: +421 2 58224199 A transistor protected by a fast-acting fuse will protect the fuse by blowing first.